CN203944279U - Compressed-air drier - Google Patents
Compressed-air drier Download PDFInfo
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- CN203944279U CN203944279U CN201420394906.1U CN201420394906U CN203944279U CN 203944279 U CN203944279 U CN 203944279U CN 201420394906 U CN201420394906 U CN 201420394906U CN 203944279 U CN203944279 U CN 203944279U
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- air
- valve
- blowdown
- regeneration
- compressed
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- 238000001035 drying Methods 0.000 claims abstract description 96
- 230000008929 regeneration Effects 0.000 claims abstract description 79
- 238000011069 regeneration method Methods 0.000 claims abstract description 79
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 239000010865 sewage Substances 0.000 claims description 24
- 239000011148 porous material Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000003921 oil Substances 0.000 description 21
- 230000008439 repair process Effects 0.000 description 19
- 230000000694 effects Effects 0.000 description 15
- 239000010721 machine oil Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011796 hollow space material Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Landscapes
- Drying Of Gases (AREA)
Abstract
The utility model provides a kind of compressed-air drier, belong to railcar air brake field, comprise drying tower and regeneration gas receiver, drying tower comprises interconnective tower body and valve plate assembly, regeneration gas receiver is provided with regeneration tracheae, tower body is provided with drying device, and valve plate assembly comprises valve plate, check-valves and blowoff valve, is provided with air intake duct, gas off-take, blowdown air flue and regeneration air flue on valve plate.The utility model is pressed into drying tower by air compressor by air and is dried, and is pressed in total reservoir, for Pneumatic brake systems provides air force, and utilizes regeneration gas receiver to realize the regeneration of air in drying tower.This compressed-air drier is that mechanical type controls automatically, has avoided employing electric-control system, therefore simple in structure, and failure rate is low is safe and reliable.
Description
Technical field
The utility model relates to railcar air brake field, in particular to a kind of compressed-air drier.
Background technology
Along with the develop rapidly of Chinese Railway scale and technology, railway construction, maintenance are also improving constantly in technology and performance by railcar.In railway rail car Pneumatic brake systems, generally can adopt compressed-air drier at present, in case the corrosion that Pneumatic brake systems causes because water content of compressed air is too high, freeze, thereby guarantee carrying out smoothly of the safe operation of railcar and construction, maintenance activity.
The compressed-air drier adopting on current track car Pneumatic brake systems is generally double tower electric-controlled type air dryer, this double tower electric-controlled type air dryer is provided with electric-control system, although electric-control system can be controlled air inlet and be dried, but intelligent low due to electric-control system, therefore compressed-air actuated dry processing is failed to adjust in real time according to the different operating conditions of air compressor, and electrical control system structure complexity, easily breaks down, production maintenance cost is high.
Utility model content
The utility model provides a kind of compressed-air drier, is intended to address the above problem.
The utility model is achieved in that
A kind of compressed-air drier, comprise drying tower and regeneration gas receiver, described drying tower comprises interconnective tower body and valve plate assembly, and described regeneration gas receiver is provided with regeneration tracheae, described tower body is provided with drying device, and described valve plate assembly comprises valve plate, check-valves and blowoff valve;
Described valve plate is provided with air intake duct, and one end of described air intake duct is communicated with air compressor, and the other end of described air intake duct is communicated with described drying device;
Described valve plate is also provided with gas off-take, one end of described gas off-take is communicated with described drying device, the other end of described gas off-take is communicated with total reservoir, described check-valves is arranged on described gas off-take, when air from described air compressor in the time that described drying device flow into described total reservoir, described check-valves is in open mode;
Described valve plate is also provided with blowdown air flue, one end of described blowdown air flue is communicated with described air intake duct, the other end is provided with sewage draining exit, described blowoff valve is arranged on described blowdown air flue, one end of described blowoff valve is provided with controls the control cylinder that described blowoff valve opens and closes, the pressure regulator valve of described control cylinder and described air compressor is communicated with by controlling air flue, and when air is from described regeneration gas receiver through described drying device during again from described sewage draining exit outflow, described blowoff valve is in open mode;
Described valve plate is also provided with regeneration air flue, and one end of described regeneration air flue is communicated with described gas off-take, and the other end is communicated with described regeneration tracheae.
Further, described pressure regulator valve is connected with described total reservoir.Make described pressure regulator valve feed back automatic adjusting according to the air pressure in described total reservoir, when the air pressure in described total reservoir is lower than when setting value, described pressure regulator valve is in closed condition, and described air compressor enters load running, and described compressed-air drier enters dry run; When the air pressure in described total reservoir is higher than when setting value, the spool of described pressure regulator valve is opened, and described air compressor is in no-load running state, and described compressed-air drier enters regenerative process.
Further, described check-valves comprises non-return valve seat, check-valve spring, non-return valve core and check valve spool seat ring, described non-return valve seat is connected with described valve plate, described non-return valve seat is provided with the check valve hole of sliding for described non-return valve core, described check valve hole is stretched in one end of described non-return valve core, the other end of described non-return valve core props up described check valve spool seat ring, described check valve spool seat ring is connected with described valve plate, described check valve spool seat ring is provided with the passage being communicated with described gas off-take, one end of described check-valve spring props up described non-return valve core, the other end props up described non-return valve seat, the air that described drying device flows out is in the time that described gas off-take flows out, described non-return valve core and described check valve spool seat ring depart from.
By described check-valves is set, in dry run, through the dry air of described drying device, enter described gas off-take, and can promote described non-return valve core and compress described check-valve spring, described non-return valve core is slided in described check valve hole, and now described check-valves is in open mode, and air flows out from the outlet of described gas off-take through described check-valves; In regenerative process, air in described drying tower flows out from described sewage draining exit through described blowdown air flue, and described regeneration gas receiver continues oppositely to blow dry air by described regeneration tracheae to described drying tower, now under the effect of described check-valve spring and air pressure, described non-return valve core props up described check valve spool seat ring, make described check-valves in closed condition, avoided the Air Reverse of described total reservoir to flowing back in described drying device, so cause air in described total reservoir from described sewage draining exit discharged to atmosphere.
Further, described blowoff valve comprises blowdown valve body, blowdown valve seat, blowdown spool, blowoff valve spool seat ring and blowoff valve spring, described blowdown valve seat is connected with described valve plate, described blowdown valve seat is provided with the blowdown valve opening sliding for described blowdown spool, described blowdown valve opening is stretched in one end of described blowdown spool, the other end of described blowdown spool props up described blowoff valve spool seat ring, described blowoff valve spool seat ring is arranged on described blowdown valve body, described blowoff valve spool seat ring is provided with the passage being communicated with described blowdown air flue, the air that described drying device flows out is in the time that described blowdown air flue flows out, described blowdown spool and described blowoff valve spool seat ring depart from.
By described blowoff valve is set, make in the time of dry run air inlet, under the effect of described blowoff valve spring, described blowdown spool props up described blowoff valve spool seat ring, make described blowoff valve in closed condition, the air being now pressed into from described air compressor can only flow into described drying device through described air intake duct, has avoided air to flow out from described blowdown air flue by described blowoff valve; In regenerative process, described air intake duct is closed, described pressure regulator valve on described air compressor, in open mode, is controlled gas and by described control cylinder, described blowoff valve is opened, and can make the air in described drying tower flow out from described sewage draining exit through described blowdown air flue.
Further, described control cylinder comprises piston, push rod and control cylinder spring, described blowdown valve body is provided with pilot hole, described push rod is installed on described pilot hole, the two ends of described push rod are adjacent with described piston with described blowdown spool respectively, described piston is communicated with described control air flue away from a side of described push rod, and the two ends of described control cylinder spring prop up respectively described piston and described blowdown valve body.
By described piston, described push rod and described control cylinder spring are set at described control cylinder, make in regenerative process, described pressure regulator valve is opened, make to control gas and promote described piston action by described control air flue, described piston promotes described push rod, and described push rod promotes described blowdown spool, and described blowdown spool is slided in described blowdown valve opening, described blowdown spool and described blowoff valve spool seat ring depart from, and now described blowoff valve is opened; In the time that total reservoir internal gas pressure is reduced to setting value, described pressure regulator valve cuts out, the source of the gas of closing control gas, under the effect of described blowoff valve spring, described blowdown valve core reset props up described blowoff valve spool seat ring, described blowoff valve cuts out, and now described piston resets under the effect of described control cylinder spring, and described blowdown spool promotes described push rod resets described push rod; By being set, described control cylinder realizes the control that described blowoff valve is opened and closed thus.
Further, described tower body also comprises interconnective cylindrical shell and upper cover, described drying device is arranged at described inner barrel, described drying device comprises breather pipe and is filled in the drier portion of described inner barrel, described drier portion is provided with dry entrance, and described dry entrance is communicated with described air intake duct, is provided with the pore of supplied gas circulation on described breather pipe, one end of described breather pipe is provided with dry outlet, and described dry outlet is communicated with described gas off-take.
In dry run, thereby the air that described air compressor is pressed into flows into described drying device through described inlet duct flow through described dry entrance, the suction-operated of the described drier of process portion, dried air sees through described pore and enters described breather pipe, and flows into described gas off-take through described dry outlet again by described breather pipe; In regenerative process, described regeneration gas receiver continues oppositely to blow dry air in described drying tower by described regeneration tracheae, and the moisture in the drier of described drier portion is blowed to atmosphere through described blowdown air flue.Thereby the desiccation of drier to air and the regeneration of drier are realized.
Further, described drying device is also provided with filter, and described filter is enclosed within the outside of described breather pipe with the part of described pore.By described filter is set, can filter the impurity being mingled with in the air being blown into.
Further, described drying device is also provided with oil water separator, described oil water separator comprises that upper and lower both sides are the housing of grid, and the downside of described housing is communicated with described air intake duct, and described enclosure interior is filled with the copper sheet of multiple one-tenth web-likes for separating of profit.By described oil water separator is set, in dry run, air enters described oil water separator through air intake duct, in the time flowing through into the copper sheet of web-like, the irregular turbulent flow of mobile formation of air, now airborne machine oil and aqueous water drop on copper sheet or described housing in the effect of centrifugal force and self gravitation, thereby have realized the separation of oily water and air; In regenerative process, the air being oppositely blown into blows out isolated oil water separator machine oil and aqueous water discharged to atmosphere by blowdown air flue.
Further, described regeneration gas receiver is connected with choke valve, and described choke valve is connected with described regeneration tracheae.By described choke valve is set, make described choke valve there is throttling action to the air being blown in dry run in described regeneration gas receiver, make air pressure in described regeneration gas receiver higher than the air pressure in described drying tower, in regenerative process, make described regeneration gas receiver can continue in described drying tower, oppositely to blow dry air by described regeneration tracheae.
The utility model arranges drying tower and regeneration gas receiver on compressed-air drier, tower body and valve plate assembly are set on drying tower, on regeneration gas receiver, regeneration tracheae is set, drying device is set on tower body, valve plate, check-valves and blowoff valve are set on valve plate assembly, and air intake duct, gas off-take, blowdown air flue and regeneration air flue are set on valve plate.
This compressed-air drier is in the time of work, when total reservoir internal gas pressure is lower than when setting value, compressed-air drier enters dry run, air is pressed into air intake duct by air compressor, through the dry gas off-take that flows into of drying device, flow in total reservoir through gas off-take again, and the dried air of drying device is pressed into regeneration gas receiver through regeneration air flue simultaneously; In the time that the air pressure in total reservoir is increased to the peak of setting, compressed-air drier enters regenerative process, close air intake duct, pressure regulator valve on air compressor is opened control cylinder control of sewage disposal valve is opened, air in drying tower flows out from the sewage draining exit of blowdown air flue through blowoff valve, the gas receiver of simultaneously regenerating continues in drying tower, oppositely to blow dry air through regeneration air flue by regeneration tracheae, and the moisture that the drier in drying device is discharged blows to atmosphere; When the air pressure in total reservoir reduces and lower than when setting value, compressed-air drier reenters dry run, starts new working cycles gradually.
Therefore realized the air pressure feedback in total reservoir has been regulated automatically, realize the mechanical type Synchronization Control of the air compressor in railcar, compressed-air drier is dried and dried air is pressed into total reservoir the air being pressed under mechanical type controls automatically, for railcar Pneumatic brake systems provides air force, and can realize the regeneration of air in compressed-air drier, carry out periodic duty.This compressed-air drier is that mechanical type controls automatically, has avoided employing electric-control system, therefore simple in structure, and failure rate is low is safe and reliable.
Brief description of the drawings
Fig. 1 shows the structure of the compressed-air drier that the utility model embodiment provides;
Fig. 2 shows the structure of the check-valves of the compressed-air drier that the utility model embodiment provides;
Fig. 3 shows the blowoff valve of compressed-air drier and the structure of control cylinder that the utility model embodiment provides.
Detailed description of the invention
Fig. 1 shows the structure of the compressed-air drier that the utility model embodiment provides; Refer to Fig. 1, the utility model provides a kind of compressed-air drier, this compressed-air drier comprises drying tower 101 and regeneration gas receiver 102, drying tower 101 comprises interconnective tower body 103 and valve plate assembly, regeneration gas receiver 102 is provided with regeneration tracheae 104, tower body 103 is provided with drying device 105, and valve plate assembly comprises valve plate 106, check-valves 107 and blowoff valve 108.
Valve plate 106 is provided with air intake duct 111, and one end of air intake duct 111 is communicated with air compressor 109, and the other end of air intake duct 111 is communicated with drying device 105.
Valve plate 106 is also provided with gas off-take 112, one end of gas off-take 112 is communicated with drying device 105, the other end of gas off-take 112 is communicated with total reservoir 110, check-valves 107 is arranged on gas off-take 112, in the time that air flow into total reservoir 110 from air compressor 109 drying devices 105, check-valves 107 is in open mode.
Valve plate 106 is also provided with blowdown air flue 113, one end of blowdown air flue 113 is communicated with air intake duct 111, the other end is provided with sewage draining exit 125, blowoff valve 108 is arranged on blowdown air flue 113, one end of blowoff valve 108 is provided with the control cylinder 126 that control of sewage disposal valve 108 opens and closes, control cylinder 126 is communicated with by controlling air flue 141 with the pressure regulator valve 127 of air compressor 109, and in the time that air flows out from sewage draining exit 125 from regeneration gas receiver 102 drying devices 105 again, blowoff valve 108 is in open mode.
Valve plate 106 is also provided with regeneration air flue 114, regeneration one end of air flue 114 and being communicated with of gas off-take 112, and the other end is communicated with regeneration tracheae 104.
Air compressor 109 is connected with total reservoir 110, and the air pressure in total reservoir 110 can regulate automatically through air compressor 109.Total reservoir 110 is also connected with the air brake of railcar, and the air in total reservoir 110 can flow into air brake, and always reservoir 110 provides air force for air brake.
This compressed-air drier is in the time of work, when total reservoir 110 internal gas pressures are lower than when setting value, compressed-air drier enters dry run, air is pressed into air intake duct 111 by air compressor 109, through the dry gas off-take 112 that flows into of drying device 105, flow in total reservoir 110 through gas off-take 112 again, and the dried air of drying device 105 is pressed into regeneration gas receiver 102 through regeneration air flue 114 simultaneously; In the time that the air pressure in total reservoir 110 is increased to the peak of setting, compressed-air drier enters regenerative process, close air intake duct 111, pressure regulator valve 127 on air compressor 109 is opened control cylinder 126 control of sewage disposal valves 108 is opened, air in drying tower 101 flows out from the sewage draining exit 125 of blowdown air flue 113 through blowoff valve 108, the gas receiver 102 of simultaneously regenerating continues by regeneration tracheae 104 through regeneration air flue 114 to the interior dry air that oppositely blows of drying tower 101, and the moisture that the drier in drying device 105 is discharged blows to atmosphere; When the air pressure in total reservoir 110 reduces and lower than when setting value, compressed-air drier reenters dry run, starts new working cycles gradually.
Therefore the compressed-air drier that adopts the utility model to provide, having realized the air compressor 109 in railcar regulates automatically to the air pressure feedback in total reservoir 110, realize the mechanical type Synchronization Control of air compressor 109, compressed-air drier is dried and dried air is pressed into total reservoir 110 air being pressed under mechanical type controls automatically, for railcar Pneumatic brake systems provides air force, and can realize the regeneration of air in compressed-air drier, carry out periodic duty.This compressed-air drier is that mechanical type controls automatically, has avoided employing electric-control system, therefore simple in structure, and failure rate is low is safe and reliable.
On the basis of the technical scheme of above-mentioned compressed-air drier, further, pressure regulator valve 127 is connected with total reservoir 110.Make pressure regulator valve 127 feed back automatic adjusting according to the air pressure in total reservoir 110, when the air pressure in total reservoir 110 is lower than when setting value, pressure regulator valve 127 is in closed condition, and air compressor 109 enters load running, and compressed-air drier enters dry run; When the air pressure in total reservoir 110 is higher than when setting value, the spool of pressure regulator valve 127 is opened, and air compressor 109 is in no-load running state, and compressed-air drier enters regenerative process.Fig. 2 shows the structure of the check-valves 107 of the compressed-air drier that the utility model embodiment provides, refer to Fig. 2, check-valves 107 comprises non-return valve seat 115, check-valve spring 116, non-return valve core 117 and check valve spool seat ring 118, non-return valve seat 115 is connected with valve plate 106, non-return valve seat 115 is provided with the check valve hole 119 of sliding for non-return valve core 117, check valve hole 119 is stretched in one end of non-return valve core 117, the other end of non-return valve core 117 props up check valve spool seat ring 118, check valve spool seat ring 118 is connected with valve plate 106, check valve spool seat ring 118 is provided with the passage being communicated with gas off-take 112, check valve spool seat ring 118 is tubular, its hollow space is the passage being communicated with gas off-take 112, one end of check-valve spring 116 props up non-return valve core 117, the other end props up non-return valve seat 115, the air that drying device 105 flows out is in the time that gas off-take 112 flows out, non-return valve core 117 departs from check valve spool seat ring 118.
By check-valves 107 is set, in dry run, through the dry air of drying device 105, enter gas off-take 112, and can promote non-return valve core 117 compression check valve springs 116, make non-return valve core 117 in the interior slip of check valve hole 119, now check-valves 107 is in open mode, and air flows out from the outlet of gas off-take 112 through check-valves 107; In regenerative process, air in drying tower 101 flows out from sewage draining exit 125 through blowdown air flue 113, and regeneration gas receiver 102 continues oppositely to blow dry air by regeneration tracheae 104 to drying tower 101, now under the effect of check-valve spring 116 and air pressure, non-return valve core 117 props up check valve spool seat ring 118, make check-valves 107 form well sealing, now check-valves 107 is in closed condition, avoided the Air Reverse of total reservoir 110 to flowing back in drying device 105, so cause air in total reservoir 110 from sewage draining exit 125 discharged to atmosphere.
Fig. 3 shows the blowoff valve 108 of compressed-air drier and the structure of control cylinder 126 that the utility model embodiment provides, refer to Fig. 3, blowoff valve 108 comprises blowdown valve body 120, blowdown valve seat 121, blowdown spool 122, blowoff valve spool seat ring 123 and blowoff valve spring 124, blowdown valve seat 121 is connected with valve plate 106, blowdown valve seat 121 is provided with the blowdown valve opening 142 sliding for blowdown spool 122, blowdown valve opening 142 is stretched in one end of blowdown spool 122, the other end of blowdown spool 122 props up blowoff valve spool seat ring 123, blowoff valve spool seat ring 123 is arranged on blowdown valve body 120, blowoff valve spool seat ring 123 is provided with the passage being communicated with blowdown air flue 113, blowoff valve spool seat ring 123 is tubular, its hollow space is the passage being communicated with blowdown air flue 113, the air that drying device 105 flows out is in the time that blowdown air flue 113 flows out, blowdown spool 122 departs from blowoff valve spool seat ring 123.
By blowoff valve 108 is set, make in the time of dry run air inlet, under the effect of blowoff valve spring 124, blowdown spool 122 props up blowoff valve spool seat ring 123, make blowoff valve 108 form well sealing, now blowoff valve 108 is in closed condition, and the air being now pressed into from air compressor 109 can only flow into drying device 105 through air intake duct 111, has avoided air to flow out from blowdown air flue 113 by blowoff valve 108; In regenerative process, air intake duct 111 is closed, and the pressure regulator valve 127 on air compressor 109, in open mode, is controlled gas and by control cylinder 126, blowoff valve 108 opened, and can make the air in drying tower 101 flow out from sewage draining exit 125 through blowdown air flue 113.
Refer to Fig. 3, control cylinder 126 comprises piston 128, push rod 129 and control cylinder spring 130, blowdown valve body 120 is provided with pilot hole, push rod 129 is installed on pilot hole, the two ends of push rod 129 keep with blowdown spool 122 and piston 128 state that gap or maintenance contact respectively but without interaction force, piston 128 is communicated with control air flue 141 away from a side of push rod 129, and the two ends of control cylinder spring 130 prop up respectively piston 128 and blowdown valve body 120.
By piston 128, push rod 129 and control cylinder spring 130 are set at control cylinder 126, make in regenerative process, pressure regulator valve 127 is opened, making to control gas promotes piston 128 and moves by controlling air flue 141, piston 128 promotes push rod 129, and push rod 129 promotes blowdown spool 122, makes blowdown spool 122 in the interior slip of blowdown valve opening 142, blowdown spool 122 departs from blowoff valve spool seat ring 123, and now blowoff valve 108 is opened; In the time that total reservoir 110 internal gas pressures are reduced to setting value, pressure regulator valve 127 cuts out, the source of the gas of closing control gas, under the effect of blowoff valve spring 124, blowdown spool 122 resets and props up blowoff valve spool seat ring 123, blowoff valve 108 cuts out, and now piston 128 resets under the effect of control cylinder spring 130, and blowdown spool 122 promotes push rod 129 resets push rod 129.By being set, control cylinder 126 realizes the control that blowoff valve 108 is opened and closed thus.
Refer to Fig. 1, tower body 103 also comprises interconnective cylindrical shell 131 and upper cover 132, drying device 105 is arranged at cylindrical shell 131 inside, drying device 105 comprises breather pipe 133 and is filled in the drier portion 134 of cylindrical shell 131 inside, drier portion 134 is provided with dry entrance 135, and dry entrance 135 is communicated with air intake duct 111, is provided with the pore of supplied gas circulation on breather pipe 133, one end of breather pipe 133 is provided with dry outlet 136, and dry outlet 136 is communicated with gas off-take 112.
Breather pipe 133 is positioned at the middle part of tower body 103, and pore is arranged at the part of breather pipe 133 upper ends.Tower body 103 is connected with valve plate 106 assemblies by centre bolt 137, and centre bolt 137 compresses upper cover 132, and runs through breather pipe 133.The drier of drier portion 134 is the drier that track dryer for car is conventional.
In dry run, thereby the air that air compressor 109 is pressed into is flowed through and is dried entrance 135 inflow drying devices 105 through air intake duct 111, through the suction-operated of drier portion 134, dried air sees through pore and enters breather pipe 133, and by breather pipe 133 drying outlet 136 inflow gas off-takes 112 again; In regenerative process, regeneration gas receiver 102 continues, to the interior dry air that oppositely blows of drying tower 101, the moisture in the drier of drier portion 134 to be blowed to atmosphere through blowdown air flue 113 by regeneration tracheae 104.Thereby the desiccation of drier to air and the regeneration of drier are realized.
Refer to Fig. 1, drying device 105 is also provided with filter 138, and filter 138 is enclosed within the outside of breather pipe 133 with leachy part.By filter 138 is set, can filter the impurity being mingled with in the air being blown into.
Refer to Fig. 1, drying device 105 is also provided with oil water separator 139, and oil water separator 139 comprises that upper and lower both sides are the housing of grid, and the downside of housing is communicated with air intake duct 111, and enclosure interior is filled with the copper sheet of multiple one-tenth web-likes for separating of profit.By oil water separator 139 is set, in dry run, air enters oil water separator 139 through air intake duct 111, in the time flowing through into the copper sheet of web-like, the irregular turbulent flow of mobile formation of air, now airborne machine oil and aqueous water drop on copper sheet or housing in the effect of centrifugal force and self gravitation, thereby have realized separating of profit and air; In regenerative process, the air being oppositely blown into blows out isolated oil water separator 139 machine oil and aqueous water discharged to atmosphere by blowdown air flue 113.
Refer to Fig. 1, regeneration gas receiver 102 is connected with choke valve 140, and choke valve 140 is connected with regeneration tracheae 104.By choke valve 140 is set, make choke valve 140 there is throttling action to the air being blown in dry run in regeneration gas receiver 102, make the air pressure of regenerating in gas receiver 102 higher than the air pressure in drying tower 101, in regenerative process, the gas receiver 102 that makes to regenerate can continue by regeneration tracheae 104 to the interior dry air that oppositely blows of drying tower 101.
Refer to Fig. 1～3, the specific works process of this compressed-air drier is as follows:
Dry run: in the time that the air pressure in total reservoir 110 is not enough, pressure regulator valve 127 is in closed condition, air compressor 109 is worked air is pressed into air intake duct 111, then enter drying device 105 by the dry entrance 135 of drying device 105, the grid that air flows through on the housing of oil water separator 139 enters oil water separator 139, in air with machine oil and aqueous water realize by the copper sheet of the one-tenth web-like in oil water separator 139 and the separating of air, the grid that air flows through on the housing of oil water separator 139 subsequently enters drier portion 134, the drier of drier portion 134 is by airborne water adsorption, in the air inflow filter 138 of super-dry, filter 138 is by airborne contaminant filter, then air enters in breather pipe 133 through the pore on breather pipe 133, flowed out by the dry outlet 136 of breather pipe 133 ends again.
The dried air part flowing out from dry outlet 136 enters gas off-take 112, and promote non-return valve core 117, make non-return valve core 117 in the interior slip of check valve hole 119, now non-return valve core 117 departs from check valve spool seat ring 118, now check-valves 107 is in open mode, air flows out into total reservoir 110 through check-valves 107 from gas off-take 112, total reservoir 110 stores the dry air flowing into, and prepares against in the time that air brake is worked as air brake provides air force.
The dried air flowing out from dry outlet 136, some enters regeneration air flue 114, flow into regeneration tracheae 104 through regeneration air flue 114, thereby flow into regeneration gas receiver 102, regeneration gas receiver 102 uses while storing in order to regenerative process to the dry air flowing into.
Regenerative process: air is pressed into after total reservoir 110, air pressure in total reservoir 110 increases gradually, in the time that the air pressure in total reservoir 110 increases to the peak of setting, pressure regulator valve 127 on air compressor 109 is opened, make to control gas by the road by the control valve action on air compressor 109, and then close air intake duct 111, air compressor 109 is converted to no-load running.Control gas simultaneously and promote piston 128 by controlling air flue 141, piston 128 promotes push rod 129, and push rod 129 promotes blowdown spool 122, makes blowdown spool 122 in the interior slip of blowdown valve opening 142, blowdown spool 122 departs from blowoff valve spool seat ring 123, and now blowoff valve 108 is in open mode.
Because the air pressure in drying tower 101 is greater than atmospheric pressure, therefore the air in drying tower 101 is oppositely flowed out from blowdown air flue 113 by the air flow of dry run, be that air in gas off-take 112 flows into filter 138 through breather pipe 133, flow into oil water separator 139 through drier portion 134 again, flow out to air intake duct 111 from oil water separator 139 again, because air intake duct 111 is closed, air flows into blowdown air flue 113, and flow to atmosphere from the sewage draining exit 125 of blowdown air flue 113 ends through blowoff valve 108.
In this process, due to the effect of check-valve spring 116 and air pressure, non-return valve core 117 props up check valve spool seat ring 118 all the time, makes check-valves 107 in closed condition, and the air of having avoided total reservoir 110 refluxes by check-valves 107 and discharged to atmosphere.
Air, the process mobile to sewage draining exit 125 from drying tower 101, has been taken away the isolated machine oil of oil water separator 139 and water, has played the effect of cleansing oil separator 139.
Meanwhile, along with the interior air of drying tower 101 is from the outflow of sewage draining exit 125, air pressure in drying tower 101 reduces, the moisture of drier absorption discharges, the air pressure of regeneration in gas receiver 102 is much larger than the air pressure in drying tower 101, and regeneration gas receiver 102 continues to the interior dry air that oppositely blows of drying tower 101 by regeneration tracheae 104.Dry air flows into breather pipe 133 through regeneration tracheae 104, then flow into filter 138 through breather pipe 133, flow into oil water separator 139 through drier portion 134 again, flow out to air intake duct 111 from oil water separator 139 again, because air intake duct 111 is closed, dry air flows into blowdown air flue 113, and flow to atmosphere from the sewage draining exit 125 of blowdown air flue 113 ends through blowoff valve 108.
The dry air that regeneration gas receiver 102 is blown into drying tower 101 blows to atmosphere by the moisture of drier release through sewage draining exit 125 constantly, and further blow away the isolated machine oil of oil water separator 139 and water, finally make the air in drying tower 101 be dry air, realized the regeneration of drying device 105.
Reseting procedure: the air in total reservoir 110 is for air brake, and the air that total reservoir 110 stores consumes gradually.In the time that total reservoir 110 internal gas pressures are reduced to setting value, the valve core reset of the pressure regulator valve 127 of air compressor 109, pressure regulator valve 127, in closed condition, cuts out source of the gas Unloading Control air flue 141, and air compressor 109 enters load running.Piston 128 resets under the effect of control cylinder spring 130 simultaneously, push rod 129 runs out of steam, blowdown spool 122 props up blowoff valve spool seat ring 123 under the effect of blowoff valve spring 124, make blowoff valve 108 in closed condition, this compressed-air drier proceeds to dry run, starts new working cycles.
In embodiment of the present utility model, preferably, the pressure regulator valve 127 that air compressor 109 adopts is air vent valve 127, and air compressor 109 is for being equipped with the air compressor 109 of air vent valve 127.For common batch (-type) air compressor 109, only need to increase a magnetic valve, its coil connects the contactor of air compressor 109, work asynchronously with motor, from the gas receiver bleed source capsule of air compressor 109, so just obtain an automatically controlled pressure regulator valve 127, therefore the utility model is also applicable to common batch (-type) air compressor 109.
In embodiment of the present utility model, preferably, control cylinder 126 adopts piston 128 to add O type coil structures, also can adopt piston to add leather cup structure.
The utility model provides a kind of compressed-air drier, this compressed-air drier is in the time of work, when total reservoir 110 internal gas pressures are lower than when setting value, compressed-air drier enters dry run, air is pressed into air intake duct 111 by air compressor 109, through the dry gas off-take 112 that flows into of drying device 105, then flow in total reservoir 110 through gas off-take 112, and the dried air of drying device 105 is pressed into regeneration gas receiver 102 through regeneration air flue 114 simultaneously; In the time that the air pressure in total reservoir 110 is increased to the peak of setting, compressed-air drier enters regenerative process, close air intake duct 111, pressure regulator valve 127 on air compressor 109 is opened control cylinder 126 control of sewage disposal valves 108 is opened, air in drying tower 101 flows out from the sewage draining exit 125 of blowdown air flue 113 through blowoff valve 108, the gas receiver 102 of simultaneously regenerating continues by regeneration tracheae 104 through regeneration air flue 114 to the interior dry air that oppositely blows of drying tower 101, and the moisture that the drier in drying device 105 is discharged blows to atmosphere; When the air pressure in total reservoir 110 reduces and lower than when setting value, compressed-air drier reenters dry run, starts new working cycles gradually.
Therefore the compressed-air drier that adopts the utility model to provide, having realized the air compressor 109 in railcar regulates automatically to the air pressure feedback in total reservoir 110, realize the mechanical type Synchronization Control of air compressor 109, compressed-air drier is dried and dried air is pressed into total reservoir 110 air being pressed under mechanical type controls automatically, for railcar Pneumatic brake systems provides air force, and can realize the regeneration of air in compressed-air drier, carry out periodic duty.This compressed-air drier is that mechanical type controls automatically, has avoided employing electric-control system, therefore simple in structure, and failure rate is low is safe and reliable.
The working cycles of this compressed-air drier has been utilized the regulating action of air compressor 109 pressure regulator valves 127, realizes mechanical type synchronize with air compressor 109 working cycles.And drying tower 101 has been realized Integration Design with each valve and each air flue, simple in structure, complete function, dependable performance, failure rate is low.This compressed-air drier, without electric-control system, is saved material, saves the energy, and is easy to processing, with low cost.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. a compressed-air drier, it is characterized in that, comprise drying tower and regeneration gas receiver, described drying tower comprises interconnective tower body and valve plate assembly, described regeneration gas receiver is provided with regeneration tracheae, described tower body is provided with drying device, and described valve plate assembly comprises valve plate, check-valves and blowoff valve;
Described valve plate is provided with air intake duct, and one end of described air intake duct is communicated with air compressor, and the other end of described air intake duct is communicated with described drying device;
Described valve plate is also provided with gas off-take, one end of described gas off-take is communicated with described drying device, the other end of described gas off-take is communicated with total reservoir, described check-valves is arranged on described gas off-take, when air from described air compressor in the time that described drying device flow into described total reservoir, described check-valves is in open mode;
Described valve plate is also provided with blowdown air flue, one end of described blowdown air flue is communicated with described air intake duct, the other end is provided with sewage draining exit, described blowoff valve is arranged on described blowdown air flue, one end of described blowoff valve is provided with controls the control cylinder that described blowoff valve opens and closes, the pressure regulator valve of described control cylinder and described air compressor is communicated with by controlling air flue, and when air is from described regeneration gas receiver through described drying device during again from described sewage draining exit outflow, described blowoff valve is in open mode;
Described valve plate is also provided with regeneration air flue, and one end of described regeneration air flue is communicated with described gas off-take, and the other end is communicated with described regeneration tracheae.
2. compressed-air drier according to claim 1, is characterized in that, described pressure regulator valve is connected with described total reservoir.
3. compressed-air drier according to claim 1, it is characterized in that, described check-valves comprises non-return valve seat, check-valve spring, non-return valve core and check valve spool seat ring, described non-return valve seat is connected with described valve plate, described non-return valve seat is provided with the check valve hole of sliding for described non-return valve core, described check valve hole is stretched in one end of described non-return valve core, the other end of described non-return valve core props up described check valve spool seat ring, described check valve spool seat ring is connected with described valve plate, described check valve spool seat ring is provided with the passage being communicated with described gas off-take, one end of described check-valve spring props up described non-return valve core, the other end props up described non-return valve seat, the air that described drying device flows out is in the time that described gas off-take flows out, described non-return valve core and described check valve spool seat ring depart from.
4. compressed-air drier according to claim 1, it is characterized in that, described blowoff valve comprises blowdown valve body, blowdown valve seat, blowdown spool, blowoff valve spool seat ring and blowoff valve spring, described blowdown valve seat is connected with described valve plate, described blowdown valve seat is provided with the blowdown valve opening sliding for described blowdown spool, described blowdown valve opening is stretched in one end of described blowdown spool, the other end of described blowdown spool props up described blowoff valve spool seat ring, described blowoff valve spool seat ring is arranged on described blowdown valve body, described blowoff valve spool seat ring is provided with the passage being communicated with described blowdown air flue, the air that described drying device flows out is in the time that described blowdown air flue flows out, described blowdown spool and described blowoff valve spool seat ring depart from.
5. compressed-air drier according to claim 4, it is characterized in that, described control cylinder comprises piston, push rod and control cylinder spring, described blowdown valve body is provided with pilot hole, described push rod is installed on described pilot hole, the two ends of described push rod are adjacent with described piston with described blowdown spool respectively, and described piston is communicated with described control air flue away from a side of described push rod, and the two ends of described control cylinder spring prop up respectively described piston and described blowdown valve body.
6. compressed-air drier according to claim 1, it is characterized in that, described tower body also comprises interconnective cylindrical shell and upper cover, described drying device is arranged at described inner barrel, described drying device comprises breather pipe and is filled in the drier portion of described inner barrel, described drier portion is provided with dry entrance, described dry entrance is communicated with described air intake duct, on described breather pipe, be provided with the pore of supplied gas circulation, one end of described breather pipe is provided with dry outlet, and described dry outlet is communicated with described gas off-take.
7. compressed-air drier according to claim 6, is characterized in that, described drying device is also provided with filter, and described filter is enclosed within the outside of described breather pipe with the part of described pore.
8. compressed-air drier according to claim 6, it is characterized in that, described drying device is also provided with oil water separator, described oil water separator comprises that upper and lower both sides are the housing of grid, the downside of described housing is communicated with described air intake duct, and described enclosure interior is filled with the copper sheet of multiple one-tenth web-likes for separating of profit.
9. compressed-air drier according to claim 1, is characterized in that, described regeneration gas receiver is connected with choke valve, and described choke valve is connected with described regeneration tracheae.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420394906.1U CN203944279U (en) | 2014-07-17 | 2014-07-17 | Compressed-air drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420394906.1U CN203944279U (en) | 2014-07-17 | 2014-07-17 | Compressed-air drier |
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| Publication Number | Publication Date |
|---|---|
| CN203944279U true CN203944279U (en) | 2014-11-19 |
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| CN201420394906.1U Expired - Fee Related CN203944279U (en) | 2014-07-17 | 2014-07-17 | Compressed-air drier |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874263A (en) * | 2015-06-01 | 2015-09-02 | 李跃东 | Airflow accelerator of adsorptive compressed air dryer |
| CN105065235A (en) * | 2015-09-06 | 2015-11-18 | 宫卫东 | Double-tower dryer |
| CN106377981A (en) * | 2016-11-11 | 2017-02-08 | 上海大众祥源动力供应有限公司 | Adsorption type drying device with high operation reliability |
| CN112044242A (en) * | 2020-09-25 | 2020-12-08 | 襄阳索立特机车车辆有限责任公司 | Double exhaust type single-tower air dryer |
| CN112452101A (en) * | 2020-11-18 | 2021-03-09 | 山东艾泰克环保科技股份有限公司 | Vehicle-mounted air cylinder convenient for dehumidification |
| CN113617191A (en) * | 2021-08-20 | 2021-11-09 | 海拓仪器(江苏)有限公司 | Low dew point drying device for compressed air |
-
2014
- 2014-07-17 CN CN201420394906.1U patent/CN203944279U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874263A (en) * | 2015-06-01 | 2015-09-02 | 李跃东 | Airflow accelerator of adsorptive compressed air dryer |
| CN105065235A (en) * | 2015-09-06 | 2015-11-18 | 宫卫东 | Double-tower dryer |
| CN106377981A (en) * | 2016-11-11 | 2017-02-08 | 上海大众祥源动力供应有限公司 | Adsorption type drying device with high operation reliability |
| CN112044242A (en) * | 2020-09-25 | 2020-12-08 | 襄阳索立特机车车辆有限责任公司 | Double exhaust type single-tower air dryer |
| CN112452101A (en) * | 2020-11-18 | 2021-03-09 | 山东艾泰克环保科技股份有限公司 | Vehicle-mounted air cylinder convenient for dehumidification |
| CN112452101B (en) * | 2020-11-18 | 2022-08-09 | 山东艾泰克环保科技股份有限公司 | Vehicle-mounted air cylinder convenient to dehumidify |
| CN113617191A (en) * | 2021-08-20 | 2021-11-09 | 海拓仪器(江苏)有限公司 | Low dew point drying device for compressed air |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20160717 |